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Home > Exam Questions > ATPL - Airline Transport Pilot license > Principles of Flight > When the air is passing through an expansion wave the local speed of sound will

225 - ATPL - When the air is passing through an expansion wave the local speed of sound will

Question 225 - Principles of Flight - ATPL - Airline Transport Pilot license

Decrease.

Decrease and beyond a certain Mach number start increasing again.

Stay constant.

Increase.

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